title: Patterns of use of sildenafil among commercially insured adults in the United States: 1998-2002.
mesh_terms: D000293:Adolescent; D000328:Adult; D000329:Advertising; D000367:Age Factors; D000368:Aged; D016208:Databases, Factual; D016757:Death, Sudden, Cardiac / Q000453:epidemiology; D011307:Drug Prescriptions / Q000706:statistics & numerical data; D004363:Drug Utilization; D007172:Erectile Dysfunction / Q000188:drug therapy / Q000453:epidemiology; D005260:Female; D006801:Humans; D007348:Insurance, Health / Q000706:statistics & numerical data*; D008297:Male; D008875:Middle Aged; D010879:Piperazines / Q000008:administration & dosage / Q000627:therapeutic use*; D011687:Purines; D012189:Retrospective Studies; D012737:Sex Factors; D000068677:Sildenafil Citrate; D013450:Sulfones; D014481:United States / Q000453:epidemiology; D014665:Vasodilator Agents / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D010879:Piperazines; D011687:Purines; D013450:Sulfones; D014665:Vasodilator Agents; D000068677:Sildenafil Citrate